VINEHILL VISTAS MUTUAL WATER COMPANY

SEBASTOPOL, CA · ~42 people served

Check your exact address → SEBASTOPOL overview

100

Excellent

PurityRadar safety score

PWSID

CA4900793

State

California

City

SEBASTOPOL

Population served

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2011. Official EPA record →

Monitoring & reporting · Total coliform began May 2011 Resolved

Monitoring & reporting · Lead & Copper Rule began Jun 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2006 Resolved

Monitoring & reporting · Total coliform began Jun 1994 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SFL Jul 2011
State action · SOX Jun 2011
State action · SFL Jan 2010
State action · SOX Jan 2010
State action · SOX Jul 2006
State action · SFL Jul 2006
EPA/federal action · EOX Dec 2003
State action · SFJ Jul 1994

This profile is built from EPA public records for system CA4900793 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.